From: David Howells <dhowells@cambridge.redhat.com>
To: aviro@redhat.com
Cc: linux-kernel@vger.kernel.org, dhowells@redhat.com
Subject: [BUG] directory renaming/removal
Date: Fri, 02 Feb 2001 13:28:28 +0000 [thread overview]
Message-ID: <4260.981120508@warthog.cambridge.redhat.com> (raw)
Run the following script (It's been tried on linux-2.2.x and linux-2.4.x):
#!/bin/sh
cd /tmp
mkdir x
cd x
mkdir x y z
strace -etrace=rename,mkdir,rmdir,chmod mv x z
echo ---------
chmod -w y
strace -etrace=rename,mkdir,rmdir,chmod mv y z
The output:
rename("x", "z/x") = 0
---------
rename("y", "z/y") = -1 EACCES (Permission denied)
mkdir("z/y", 040755) = 0
chmod("z/y", 040555) = 0
rmdir("y") = 0
You'll notice the following:
(1) Linux can't rename directories that are marked as read-only. This is
strange because the directories actually being modified _do_ have write
permission.
(2) You can _remove_ a read-only directory.
David
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next reply other threads:[~2001-02-02 13:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-02 13:28 David Howells [this message]
2001-02-02 13:48 ` [BUG] directory renaming/removal Marko Kreen
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